Gas-lamp.



B. M. DIXON.

GAS LAMP. APPLICATION FILED JUNE 22, 1906.

95 6 ,572. Patented May 3, 1910.

J74CW.

WITNESSES. INKENTOR I W g z f E ATTORNEY-S.

ANDREW a GRAHAM cu. PHOYOVLIIHOGRAPNERS. WASNNGTON M;

ROBERT M. DIXON, OF EAST ORANGE,

NEW JERSEY, ASSIGNOR TO THE SAFETY CAR HEATING & LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

GAS-LAMP.

To all whom it may concern:

Be it known that I, ROBERT M. DIXON, residing at East Orange, in the county of Essex and State of New Jersey, have, invented certain new and useful Improvements in Gas-Lamps, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to gas lighting apparatus, and appertains more particularly to improvements in lamps adapted for lighting railway cars or similar structures.

One of the objects of the invention is to provide a construction adapted to facilitate the ventilation of the structure to be lighted.

Another object contemplated is to so arrange the parts constituting the lamp structure that the draft created by the outgoing air from the car or similar structure will not prevent a steady and uninterrupted flow of air into the mixing chamber of the lamp.

Another object is to provide an improved method of suspending a lamp from the ceiling of the structure to be lighted.

Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the embodiment hereinafter set forth, and the scope of the application o'f which will be indicated in the following claims.

In the accompanying drawing, wherein is illustrated one of the various possible embodiments of my invention, the' figure is a View in section taken through a portion of a railway car, showing a lamp constructed in accordancetherewith suspended from the ceiling.

In order to rendercertain objects of my invention more clearly understood it may be pointed out that in railway service it is especially desirable to furnish a firm and steady support for the lamps, which are usually suspended from the ceilings of the cars. Inasmuch as the openings-orchimneys Which extend through the roofs of the cars and carry off. the products of combustion from the lamps are utilized asmeans of ventila- Specification of Letters Patent. Application filed June 22, 1906.

a plurality of arms 18 Patented May 3, 1910. Serial No. 322,821.

tion for the interior of the cars, it is desirable that the parts of the lamps be arranged in such manner that the outgoing vitiated air will not interfere with or prevent a steady flow of air to the mixing chambers thereof.

From the following detailed description of the relative arrangement of the features comprising my invention it will be apparent that I have obtained the above and other desirable ends through the provision of an exceedingly simple and efficient structure.

Referring now to the drawing, 1 denotes a portion of the roof and 2 a portion of the ceiling of a railway car formed with an opening 3 suitably lined as at 4:, and over this opening and fastened to the roof of the car is a chimney 5. Chimney 5 has riveted thereto as at 6, a flaring ring 7, and is provided with a dome-shaped cap 8, a space being formed between the ring and the cap to allow the products of combustion flowing up through the chimney to pass into the atmosphere. In order to prevent cinders and other foreign substances from entering the chim ney the same is provided with an encircling hood 9 supported in position opposite the opening-between ring 7 and cap 8 by means of radially extending members 10 secured at their inner portions between ring 7 and cap 8, saidmembers also acting as spacing blocks for said parts. I also preferably provide a screen as at 11 as an additional means for preventing foreign substances from entering the interior of the car and lamp through the chimney. 4

Arranged beneath opening 3 is a ceiling plate 12 having a plurality of apertures 13, said ceiling plate being also provided with a plurality of raised portions or bosses 14 upon its upper edge, so that when the same is secured to the ceiling of the car as by means of screws '15 passing through the bosses, air passageways 16 Wlll be provided between said plateand the ceiling, through which air within the car may pass into the chimney. In the present instance I have interposed a ring 17 between ceiling plate 12 and the ceiling of the car.

Extending inwardly ceiling plate 12 and integral therewith are joined at their inner and upwardly from ends, said arms constituting an integral spider 19. The point of jointure of said arms is bored as at 20 to provide a passageway for the entering gas. Extending downwardly through cap 8 and threaded into a suitable fitting 21 resting thereon is a gasway 22, the lower end of which has a threaded connection. with the upper end of aperture 20 of spider 19. Threaded into the opposite end of aperture 20 of s ider 19 is a member 23 carrying an adjusta le gas-regulating device 24 and an adjustable inspirator nozzle 25. Member 23 is held in any adjusted position in spider 19 by means of a locknut 26 threaded exteriorly thereof and adapted to engage a wall of said spider.

The body of the lamp is constituted by a casting 27 the upper end of which is internally screw-threaded to engage with threads upon the depending end of member 23, said member acting as an immediate means of support of the lamp body from spider l9. Lamp body 27 is provided witha plurality of' openings 28 extending upwardly therethrough to accommodate the products of combustion of the lamp and deliver the same into the interior of ceiling plate 12, whence they pass upward and out through the chimney, and has also a plurality of laterally extending air ports 29 which lead from the exterior of the lamp into the mixing chamber 30 adjacent the end of inspirator nozzle 25. Threaded in ports 29 are nipples 31, the outer ends of which are adjacent the lower end of ceiling plate12. The object'of this arrangement of the means for admitting air into the mixing chamber is to prevent the flow of air from the interior of the structure through the apertures of ceiling plate 12 from interfering with-the steady flow of air into the mixing chamber of the lamp whereby an even mixture of gas and air is secured, thus insuring a steady combustion at the burner and a constantamount of illumination.

Depending from body portion 27 and having a threaded connect1on therewith is a burner nozzle 32, and exteriorly of the lower portion of said burner nozzle is, in the present instance, threaded a dished perforated member 33 carrying a depending deflectorring 34.- Spun into member 33 is a supporting ring 35 forthe globe 36, said globe, as shown,having a flared upper portion to which is suitably secured a ring 37 Ring 37' has a threaded connection with supporting ring 35, a strip of relatively soft material 38 being wrapped about the edge of the globe and additional cushioning means being interposed between said strip and aring 39 which as a threaded connectlon with ring 37. Resting upon shoulders 40 formed on body portion 27 1s a deflector-ring 41, the lower v riphery 27. Supporting ring 35 is perforated as at 4-4 to allow air passing up through passageway 42 to enter the interior of globe 36, which in the present instance I have shown open at the bottom. Threaded upon member 33 is a spool 45, to which is tied or otherwise secured a pendent mantle 46.

The operation of my invention should be apparent without further description, but it'will be noted that ventilation of the struc ture to be lighted is secured by the provision of an air passageway between the ring and the ceiling and that the apertured ceiling plate also provides an eiiicient means of ventilation. The integral spider of the ceiling ring from which the lamp body depends, furnishes an exceedingly stable support therefor.

A further advantage presents itself in that as the air inlet ports are removed from the influence of the outgoing currents of air a steady flow of air for the burning mixture is at all times secured, thus insuring an even flame within the mantle.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention couldbe made without departing from the scope thereof, I intend that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limit ing sense.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is Y v 1. A gas lighting apparatus comprising, in combination, a hollow upright cylinder passing through the ceiling of the railway car or similar structure to be illuminated, and forming a chimney, an annular member depending from the ceiling and having a plurality of converging arms, a lamp body, connections between the lamp body and central portions of said arms adapted to support said lamp body from said arms, and a gasway descending centrally through said chimney and attached to said arms.

2. A gas lighting apparatus comprising, in comblnation', an annular member having a peripheral perforate portion in the shape of an inverted, truncated cone, a plurality of arms converging inwardly from the peof said member, and means supporting a lamp body from said arms. V

3. A gas lighting apparatus comprising, in comb nation, an upright hollow cylinder extending through a. ceiling and forming a chimney, an annular member arranged at the lower end of said cylinder and having a plurality of upwardly converging arms joined together wlthin said cylinder, alamp body below said member, and connections extending from said lamp body to the joined ends of said arms.

4. An apparatus of the class described comprising, in combination, a hollow cylinder passing through a ceiling and forming a chimney, a ventilator overlying said cylinder, an annular member underlying said cylinder, and a tension member passing centrally down said chimney and secured at one end to said ventilator and at the other end to said member.

5. In gas lighting apparatus of the class described, in combination, a lamp body, a member depending from the'ceili-ng of the structure to be lighted and having a plurality of arms extending inwardly from the periphery of said member to form a coupling, and means for suspending said lamp body from said coupling.

6. In gas lightingapparatus of the class described, in combination, a lamp body, a chimney, a member depending from the ceiling of the structure to be lighted and providing an air space between the same and the ceiling, a plurality of converging arms extending upwardly and inwardly from the periphery of said member to form a spider from which the lamp body is suspended, and a gasway leading down within said chimney to said spider.

7. In gas lighting apparatus of the class described, in combination, a member adapted to be secured to the ceiling of a railway car or similar structure, said member having a plurality of arms extending inwardly and joined at their inner ends to an up wardly extending hub, said hub having an opening extending upwardly therethrough, a gasway'threaded into the upper open.-end of said hub, a lamp body, and means threaded into the lower open end of said hub and extending to said lamp body.

8. In gas lighting apparatus of the class described, in combination, a member adapted to be secured to the ceiling of a railway car or similar structure and having a.pluralit-y of arms extending inwardly and joined at their inner ends, the jointure of said arms having an opening extending therethrough, a gas-way leading into one end of said opening, a member carrying an inspirator nozzle extending into the opposite end of said opening, and a lamp body threaded upon said member, said lamp body being provided with a plurality of laterallyextending-air inlet passageways which lead into the mixing i chamber thereof.

9. In gas lig ting apparatus of the class described, in combination, an apertured member adapted to be secured to the ceiling of the car or similar structure and having interiorily thereof an integral spider, said spider having an opening extending through its central port-ion, a gas-wa extending downwardly through the roof Qt the car and threaded into said opening, means carrying an inspirator nozzle threaded into the opposite end of said opening, a lamp body threaded upon said last-mentioned means, and air inlet passageways leadin into the mixing chamber of said lamp bo y from a position below said ap'ertured member.

10. In gas lighting apparatus for railway cars or similar structures, in combination, an apertured ceiling-plate depending from the ceiling of the ear,- said plate having a plurality of arms extending from its inner surface to form an integral spider, said spider having an opening extending through the same, a gas-way extending through the ceiling of the car and threaded into the opening in said spider, a member carrying an inspirator nozzle threaded into the opposite end of said opening, and a lamp body having a threaded connection with said member and being provided with laterallyextending air inlet passageways.

11. In gas lighting apparatus for railway cars or similar structures, in combination, a

ceiling plate having a plurality of aperturesand being provided interiorily with an integral apertured spider, a gas-way extending downwardly through the roof of the car and having a threaded connection with the aperture in said spider, a member carrying an ins irator nozzle threaded into the aper ture 0 said spider with which'said gas-way communicates, and a lamp body having a mixing chamber and threaded upon said member and having laterally-extending air inlet ports which lead from. a position below said ceiling plate into the mixing chamber of said lamp body.

12. In gas lighting apparatus for railway ears or similar structures, in combination, a ceiling having a suitable opening therethrough, ventilating means co-acting therewith comprising an apertured plate secured to said ceiling beneath said opening, said plate being provided interiorily with an integral spider centrally apertured to form a passageway for the entering gas, a gasway extending downwardly through the opening in said ceiling and havinga threaded connection with the aperture in said spider, a member carrying an inspirator nozzle having a threaded connection with the aperture in said spider and with which said gas-way communicates, a lamp. body having a mixing chamber and threaded upon said member, and air inlet ports extending laterally through said lamp body and into the mixing chamber thereof, said air inlet ports being located below said apertured plate.

13. Ingas lighting apparatus for railway cars or similar structures, in combination, a ceiling having a suitable opening therethrough, ventilating means co-acting therewith comprising an apertured plate secured to the ceiling immediately beneath the opening. therein, said plate having arranged interiorily thereof an integral apertured spider constituted by a plurality of inwardly and upwardly extending arms joined at their inner ends, a gas-way extending downwardly 'through the roof of the car and threaded into the aperture of said spider, a member carrying an inspirator nozzle threaded into the aperture of said spider, means carried by said member for holding the same against turning, a lamp body threaded upon said member exteriorily thereof and having a plurality of laterallyextending air inlet ports, and nipples threaded into said air inlet ports and leadingupwardly therefrom beneath said apertured plate.

ll. In'gas lighting apparatus for railway cars or similar structures, in combination, a ceiling having a suitable opening therethrough, ventilating means co-acting therewith comprising an apertured plate secured to said ceiling beneath said opening, said plate being provided interiorly with an in-- tegral spider apertured to provide a passageway'for the entering gas, a gas'way extending through the opening in the ceiling of said car and having a threaded connection with said spider, a member carrying an inspirator nozzle threaded into said spider with which said gas-way communicates, a lamp body threaded upon said member, said lamp body having a plurality of laterallyextending air inlet ports, nipples/threaded into said air inlet ports and leading outwardly therefrom to a position adjacent the lower endof said apertured plate, a burner nozzle threaded into said lamp body, and apertured means threadedupon said burner nozzle, a globe carried by said last-mentioned means, and an annular member supported by" said lamp-body which surrounds said globe supportmg means and provides anair-passageway therebetween, whereby air may be admitted to said globe.

15. In gas lighting apparatus forrailway cars or similar structure, in combination, an

. apertured ceiling member certain portions of which'are spaced from the ceiling of the car by means of bosses, whereby air-passageways are formed between the same and the ceiling, said air-passageways leading through an opening in the roof of the car whence'they" pass to theatmosphere, an invmeans threaded jointure thereof being apertured to provide a passageway for the entering gas, a gasway leading through the opening in the roof of the car and having a threaded connection with the aperture in said spider, a member carrying an ins irator nozzle threaded into the aperture 0 said spider, a lamp body threaded upon said member, a burner nozzle depending from said lamp bodyand having a threaded connection therewith, apertured upon said burner nozzle through which the products of combustion pass whence they pass through openings in said lamp body to be delivered within said ceiling member, a flanged ring carried by said apertured means, a globe suitably .secured to said flanged ring, and a member depending from said lamp body which surrounds said fianged ring and provides an air-passageway therebetween, said flanged ring being perforated to admit air into the interior of the globe which passes through the passageway between said last-mentioned member and said flanged ring.

.16. In gas lighting apparatus for railway cars or similar structures, in combination, a ceiling member certain portions of which are spaced from the ceiling of the car by means of bosses whereby air-passageways are formed between the same and the ceiling, means extending through said bosses for securing saidceiling member in position beneath an opening which extends through the roof of the car, a capped chimney arranged above said opening on the exterior of the car, an integral spider formed interiorly of said ceiling member, said spider being apertured in the central portion thereof, a gasway extending through the cap of said chimney downwardly through the opening in the roof of the car and having a threaded connection with the aperture in said spider, a member carrying an inspirator nozzle threaded into the aperture of said spider, a lamp body having a threaded connection with said member and supported thereby, said lamp body having a plurality of passageways for carrying 01f the products of combustion from the lamp and having a .plurality of air inlet ports extending laterally theret-hrough into the mixing chamber, said air inlet ports receiving air from a position beneath said ceiling member, a burner nozzle depending from said lamp body and having a threaded. connection therewith, a globe, and apertured means carried by said burner nozzle and forming a part of the support-of saidglobe. V

-. 17 In gas lighting apparatus of the class nozzle, a globe carried by said member and an annular member supported by said lamp body which surrounds said globe supporting 15 member and forms therewith an air passage whereby air may be admitted to said globe.

In testimony whereof I affix my signature, in the presence of two Witnesses.

ROBERT M. DIXON.

described, in combination, a lamp body, a burner nozzle depending therefrom, an apertured deflector member secured to said burner nozzle, a globe carried by said member, and means surrounding said member and providing an air passage between said means and said member whereby air may be admit-ted to said globe.

18. In gas lighting apparatus of the class described, in combination, a lamp body, a burner nozzle depending therefrom, an apertured deflector threaded to said burner Witnesses:

ELMER E. ALLBEE, FREDK. E. KESSINGER. 

